package com.heima.wemedia.service.impl;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.file.service.FileStorageService;
import com.heima.model.common.dtos.PageResponseResult;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.dtos.WmMaterialDto;
import com.heima.model.wemedia.pojos.WmMaterial;
import com.heima.utils.thread.WmThreadLocalUtil;
import com.heima.wemedia.mapper.WmMaterialMapper;
import com.heima.wemedia.mapper.WmNewsMaterialMapper;
import com.heima.wemedia.service.WmMaterialService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.util.Date;
import java.util.UUID;

@Slf4j
@Service
@Transactional
public class WmMaterialServiceImpl extends ServiceImpl<WmMaterialMapper, WmMaterial> implements WmMaterialService {

    @Autowired
    public FileStorageService fileStorageService;


    @Autowired
    private WmNewsMaterialMapper wmNewsMaterialMapper;


    /**
     * 图片上传
     * @param multipartFile
     * @return
     */
    @Override
    public ResponseResult uploadPicture(MultipartFile multipartFile) {

        //1.检查参数
        if(multipartFile == null || multipartFile.getSize() == 0){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        //2.上传图片到minIO中
        String fileName = UUID.randomUUID().toString().replace("-", "");
        //aa.jpg
        String originalFilename = multipartFile.getOriginalFilename();
        String postfix = originalFilename.substring(originalFilename.lastIndexOf("."));
        String fileId = null;
        try {
            fileId = fileStorageService.uploadImgFile("", fileName + postfix, multipartFile.getInputStream());
            log.info("上传图片到MinIO中，fileId:{}",fileId);
        } catch (IOException e) {
            e.printStackTrace();
            log.error("WmMaterialServiceImpl-上传文件失败");
        }

        //3.保存到数据库中
        WmMaterial wmMaterial = new WmMaterial();
        wmMaterial.setUserId(WmThreadLocalUtil.getUser().getId());
        wmMaterial.setUrl(fileId);
        wmMaterial.setIsCollection((short)0);
        wmMaterial.setType((short)0);
        wmMaterial.setCreatedTime(new Date());
        save(wmMaterial);

        //4.返回结果

        return ResponseResult.okResult(wmMaterial);
    }


    /**
     * 素材列表查询
     * @param wmMaterialDto
     * @return
     */
    @Override
    public ResponseResult findList(WmMaterialDto wmMaterialDto) {

        // 1. 检查参数
        wmMaterialDto.checkParam();

        // 2.分页查询
        IPage page = new Page(wmMaterialDto.getPage(),wmMaterialDto.getSize());
        LambdaQueryWrapper<WmMaterial> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        // 是否收藏
        if (wmMaterialDto.getIsCollection() != null && wmMaterialDto.getIsCollection() == 1) {
            lambdaQueryWrapper.eq(WmMaterial::getIsCollection,wmMaterialDto.getIsCollection());
        }

        // 按照用户查询
        lambdaQueryWrapper.eq(WmMaterial::getUserId,WmThreadLocalUtil.getUser().getId());

        // 按照时间倒序查询
        page(page,lambdaQueryWrapper);

        // 3. 返回结果
        ResponseResult responseResult =
                new PageResponseResult(wmMaterialDto.getPage(),wmMaterialDto.getSize(),(int)page.getTotal());
        responseResult.setData(page.getRecords());
        return responseResult;
    }


    @Override
    public ResponseResult cancelCollect(Integer id) {

        WmMaterial wmMaterial = this.getById(id);

        if (id == 1) {
            wmMaterial.setIsCollection((short)0);
            this.updateById(wmMaterial);
            return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
        }else if (id == 0) {
            wmMaterial.setIsCollection((short)1);
            this.updateById(wmMaterial);
            return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
        }

        return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
    }


    @Override
    public ResponseResult delPicture(Integer id) {
        if (id != null) {
            WmMaterial wmMaterial = this.getById(id);
            this.removeById(id);
            return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
        }
        return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
    }
}